GB1414856A

GB1414856A – Portable instruments for detecting alpha particles
– Google Patents

GB1414856A – Portable instruments for detecting alpha particles
– Google Patents
Portable instruments for detecting alpha particles

Info

Publication number
GB1414856A

GB1414856A
GB3324373A
GB3324373A
GB1414856A
GB 1414856 A
GB1414856 A
GB 1414856A
GB 3324373 A
GB3324373 A
GB 3324373A
GB 3324373 A
GB3324373 A
GB 3324373A
GB 1414856 A
GB1414856 A
GB 1414856A
Authority
GB
United Kingdom
Prior art keywords
mev
alpha
emissions
raa
collimators
Prior art date
1972-07-13
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB3324373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

Original Assignee
Commissariat a lEnergie Atomique CEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1972-07-13
Filing date
1973-07-12
Publication date
1975-11-19

1973-07-12
Application filed by Commissariat a lEnergie Atomique CEA
filed
Critical
Commissariat a lEnergie Atomique CEA

1975-11-19
Publication of GB1414856A
publication
Critical
patent/GB1414856A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

G—PHYSICS

G01—MEASURING; TESTING

G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION

G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation

G01T1/16—Measuring radiation intensity

G01T1/17—Circuit arrangements not adapted to a particular type of detector

G01T1/178—Circuit arrangements not adapted to a particular type of detector for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain water

G—PHYSICS

G01—MEASURING; TESTING

G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION

G01T5/00—Recording of movements or tracks of particles; Processing or analysis of such tracks

G01T5/10—Plates or blocks in which tracks of nuclear particles are made visible by after-treatment, e.g. using photographic emulsion, using mica

G—PHYSICS

G01—MEASURING; TESTING

G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION

G01T7/00—Details of radiation-measuring instruments

G01T7/02—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids

G01T7/04—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids by filtration

G—PHYSICS

G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING

G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES

G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating

G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S250/00—Radiant energy

Y10S250/02—Radon detection

Abstract

1414856 Dosage meters COMMISSARIAT A L’ENERGIE ATOMIQUE 12 July 1973 [13 July 1972] 33243/73 Heading H5R An alpha-particle dosage meter comprises means such as a suction fan 3 driven by a motor 4 for sampling air around a circuit 2 which includes a filter 5 for trapping alpha-emitting aerosols, two collimators 18, 19 at the upper ends of which are detectors 8 for separately detecting the alpha emissions of radium A and radium C1 respectively. The separate detections are made by means of different thickness screens 9, 10 disposed in front of the detectors 8 which can be cellulose nitrate. The screens 9, 10 can be of polycarbonate respectively 25 and 6 microns thick and they -can be at either end of the collimators. The screen 10 slows down the 6 Mev. emissions of RaA to about 3 Mev. resulting in tracks in the detector whereas the 7À68 Mev emissions of RaC1 are retarded to 5-3 Mev. and are not detected. Screen 9 stops the RaA -alpha particles and retards those from RaC1 to 3 Mev. and consequently they are detected.

GB3324373A
1972-07-13
1973-07-12
Portable instruments for detecting alpha particles

Expired

GB1414856A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

FR7225550A

FR2192316B1
(en)

1972-07-13
1972-07-13

Publications (1)

Publication Number
Publication Date

GB1414856A
true

GB1414856A
(en)

1975-11-19

Family
ID=9101856
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3324373A
Expired

GB1414856A
(en)

1972-07-13
1973-07-12
Portable instruments for detecting alpha particles

Country Status (8)

Country
Link

US
(1)

US3922555A
(en)

JP
(1)

JPS5646113B2
(en)

AU
(1)

AU475714B2
(en)

CA
(1)

CA994007A
(en)

CS
(1)

CS171288B2
(en)

FR
(1)

FR2192316B1
(en)

GB
(1)

GB1414856A
(en)

ZA
(1)

ZA734774B
(en)

Cited By (12)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2324695A
(en)

*

1997-04-23
1998-10-28
Univ Bristol
Monitoring atmospheric pollution

CN109613590A
(en)

*

2018-12-18
2019-04-12
衡阳师范学院
Closed loop two-stage method measures the device and method of radium concentration in water

CN109655861A
(en)

*

2018-12-18
2019-04-19
衡阳师范学院
Closed loop measures the device and method of radium concentration in water

CN109655864A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
Po-218, Po-214 tale closed loop two-stage method measure the device and method of radium concentration in water

CN109655868A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
The device and method of radium concentration in closed loop static collection rapid survey water

CN109655865A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
Po-218, Po-214 tale closed loop measure the device and method of radium concentration in water

CN109655866A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
Closed loop electrostatic collection two-stage method measures the device and method of radium concentration in water

CN109655869A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
The device and method of radium concentration in two period of closed loop rapid survey water

CN109655860A
(en)

*

2018-12-18
2019-04-19
衡阳师范学院
The device and method of radium concentration in closed loop rapid survey water

CN109655867A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
The device and method of radium concentration in closed loop partial integration rapid survey water

CN109655863A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
The square law device and method of radium concentration in two period measurement water of closed loop electrostatic collection

CN109655862A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
Closed loop static collection partial integration measures the device and method of radium concentration in water

Families Citing this family (20)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4336451A
(en)

*

1978-02-21
1982-06-22
Stieff Lorin R
Field method for detecting deposits containing uranium and thorium

CA1076267A
(en)

1979-02-26
1980-04-22
Keith Bell
Radon detection

DE2926491C2
(en)

*

1979-06-30
1983-02-24
Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe

Dosimeter for the detection of radon and / or thoron and their derivatives

FR2563633B1
(en)

*

1984-04-27
1986-07-18
Commissariat Energie Atomique

DEVICE FOR CONTROLLING ATMOSPHERIC CONTAMINATION DUE TO ALPHA PARTICLE EMITTING AEROSOLS

US4861985A
(en)

*

1986-04-08
1989-08-29
Pai Hsiang L
Time-averaged radon daughters (WL) dosimeter and method for surveys of indoor, outdoor and underground (MINE) contamination

US4864143A
(en)

*

1986-04-08
1989-09-05
Pai Hsiang L
Time-average radon daughters (WL) dosimeter for mines, indoor and environment survey

FI77733C
(en)

*

1987-06-18
1989-04-10
Ilmasti Elektroniikka Oy

MAETANORDNING FOER RADONGAS I JORDMAON.

JPH01134287A
(en)

*

1987-11-20
1989-05-26
Kagaku Gijutsucho Hoshasen Igaku Sogo Kenkyusho
Portable dust monitor

US4920263A
(en)

*

1988-01-26
1990-04-24
Gemini Research, Inc.
Radon detection system

FR2634027A1
(en)

*

1988-07-06
1990-01-12
Kodak Pathe

PASSIVE DETECTOR OF RADIATION

US4963730A
(en)

*

1989-03-20
1990-10-16
Rad-X Ltd.
Radon progeny detector

FR2647910B1
(en)

*

1989-05-30
1991-08-30
Commissariat Energie Atomique

METHOD AND DEVICE FOR MEASURING THE CONCENTRATION OF DIFFERENT RADIO ISOTOPES IN A GAS ATMOSPHERE

US5026986A
(en)

*

1989-06-09
1991-06-25
Consultec Scientific, Inc.
Radon monitor and control system based upon alpha particle detection

US5204528A
(en)

*

1989-06-09
1993-04-20
Consultec Scientific, Inc.
System for determining health risk due to radon progeny and uses thereof

US5039866A
(en)

*

1989-11-07
1991-08-13
Jiri Kvasnicka
Nuclear track detector method for radon monitoring in buildings through the 210 polonium measurement on glass

US4975574A
(en)

*

1990-01-05
1990-12-04
Henry Lucas
Method of and apparatus for measuring the mean concentration of thoron and/or radon in a gas mixture

US5457044A
(en)

*

1993-10-29
1995-10-10
Genentech, Inc.
Method for collection of aerosolized proteins by inert filtration

US5834628A
(en)

*

1995-11-09
1998-11-10
Consultec Scientific, Inc.
Activity weighted particle size distribution system

KR200356797Y1
(en)

*

2004-03-17
2004-07-21
(주)알엔테크
Time Integrate Type Radon Detector with Semicircle Ring

US8143584B2
(en)

*

2008-02-04
2012-03-27
Radon Technologies, Inc.
Radon monitor

Family Cites Families (6)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

FR1279587A
(en)

*

1960-12-19
1961-12-22
Vakutronik Veb

Method and device for the energy-independent measurement of surface radioactive contamination produced by alpha-genic substances

US3558884A
(en)

*

1968-01-08
1971-01-26
Valentin Grigorievich Babich
Instrument for determining the weight and active concentration of aerosols

JPS4328631Y1
(en)

*

1968-06-21
1968-11-25

US3505523A
(en)

*

1968-08-02
1970-04-07
Atomic Energy Commission
Personnel radon dosimeter

US3665194A
(en)

*

1968-12-27
1972-05-23
Gen Electric
Radon detection

US3604931A
(en)

*

1969-12-10
1971-09-14
Atomic Energy Commission
Neutron dosimeter including a step wedge formed of an alpha-attenuating material

1972

1972-07-13
FR
FR7225550A
patent/FR2192316B1/fr
not_active
Expired

1973

1973-07-10
US
US377927A
patent/US3922555A/en
not_active
Expired – Lifetime

1973-07-11
CA
CA176,137A
patent/CA994007A/en
not_active
Expired

1973-07-12
GB
GB3324373A
patent/GB1414856A/en
not_active
Expired

1973-07-13
ZA
ZA734774A
patent/ZA734774B/en
unknown

1973-07-13
AU
AU58095/73A
patent/AU475714B2/en
not_active
Expired

1973-07-13
JP
JP7923173A
patent/JPS5646113B2/ja
not_active
Expired

1973-07-13
CS
CS5052A
patent/CS171288B2/cs
unknown

Cited By (22)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2324695B
(en)

*

1997-04-23
2001-06-13
Univ Bristol
Pollution monitoring

GB2324695A
(en)

*

1997-04-23
1998-10-28
Univ Bristol
Monitoring atmospheric pollution

CN109655860A
(en)

*

2018-12-18
2019-04-19
衡阳师范学院
The device and method of radium concentration in closed loop rapid survey water

CN109613590A
(en)

*

2018-12-18
2019-04-12
衡阳师范学院
Closed loop two-stage method measures the device and method of radium concentration in water

CN109655861A
(en)

*

2018-12-18
2019-04-19
衡阳师范学院
Closed loop measures the device and method of radium concentration in water

CN109613590B
(en)

*

2018-12-18
2022-06-07
衡阳师范学院
Method for measuring radium concentration in water by closed-loop two-stage method

CN109655861B
(en)

*

2018-12-18
2022-06-07
衡阳师范学院
Method for measuring radium concentration in water in closed loop mode

CN109655867A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
The device and method of radium concentration in closed loop partial integration rapid survey water

CN109655864A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
Po-218, Po-214 tale closed loop two-stage method measure the device and method of radium concentration in water

CN109655866A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
Closed loop electrostatic collection two-stage method measures the device and method of radium concentration in water

CN109655865A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
Po-218, Po-214 tale closed loop measure the device and method of radium concentration in water

CN109655863A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
The square law device and method of radium concentration in two period measurement water of closed loop electrostatic collection

CN109655862A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
Closed loop static collection partial integration measures the device and method of radium concentration in water

CN109655868A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
The device and method of radium concentration in closed loop static collection rapid survey water

CN109655869A
(en)

*

2018-12-21
2019-04-19
衡阳师范学院
The device and method of radium concentration in two period of closed loop rapid survey water

CN109655867B
(en)

*

2018-12-21
2022-06-21
衡阳师范学院
Method for quickly measuring radium concentration in water through closed-loop partial integration

CN109655862B
(en)

*

2018-12-21
2022-06-21
衡阳师范学院
Method for partially integrating and measuring radium concentration in water by closed-loop electrostatic collection method

CN109655864B
(en)

*

2018-12-21
2022-06-21
衡阳师范学院
Method for measuring radium concentration in water by Po-218 and Po-214 total counting closed-loop two-stage method

CN109655869B
(en)

*

2018-12-21
2022-06-21
衡阳师范学院
Method for rapidly measuring radium concentration in water in closed-loop two-period mode

CN109655865B
(en)

*

2018-12-21
2022-06-21
衡阳师范学院
Method for measuring radium concentration in water in closed loop mode through total counting of Po-218 and Po-214

CN109655868B
(en)

*

2018-12-21
2022-08-02
衡阳师范学院
Method for rapidly measuring radium concentration in water by closed-loop electrostatic collection method

CN109655866B
(en)

*

2018-12-21
2022-08-12
衡阳师范学院
Method for measuring radium concentration in water by closed-loop electrostatic collection two-stage method

Also Published As

Publication number
Publication date

FR2192316A1
(en)

1974-02-08

ZA734774B
(en)

1974-10-30

CA994007A
(en)

1976-07-27

JPS4986080A
(en)

1974-08-17

US3922555A
(en)

1975-11-25

JPS5646113B2
(en)

1981-10-30

CS171288B2
(en)

1976-10-29

FR2192316B1
(en)

1974-12-27

AU475714B2
(en)

1976-09-02

AU5809573A
(en)

1975-01-16

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Legal Events

Date
Code
Title
Description

1976-03-31
PS
Patent sealed [section 19, patents act 1949]

1992-03-11
PCNP
Patent ceased through non-payment of renewal fee

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